Harris is generally critical of dogmatic religions, especially the Christian Right. His other philosophic writings are often pretty interesting, and well argued. I just think he oversimplifies Islam. Few would really disagree with his critique of fringe Islamic groups that abuse and oppress women, send young people out in suicide vests, and want to impose theocracy. Those groups are a threat to civilization, democracy and free thought. But he's wrong in asserting that Islam is "all fringe and no center. " That's where he really goes off the rails IMO.